Title :
Decimation filter compiler for oversampling A/D applications
Author :
Hang, Soei-Shin ; Jain, Rajeev
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A silicon compiler (DECGEN) which generates a decimation filter for oversampling A/D converters is described. It generates a multistage filter consisting of two stages of sinc filter and an equiripple bandshaping FIR filter. A heuristic procedure is derived for dividing the decimation ratio between the two stages of sinc filter in an optimum fashion. Digit serialization and hardware multiplexing are used for the target architecture in order to reduce silicon area
Keywords :
analogue-digital conversion; circuit layout CAD; digital filters; DECGEN; decimation filter compiler; decimation ratio; equiripple bandshaping FIR filter; hardware multiplexing; heuristic procedure; multistage filter; oversampling A/D converters; silicon compiler; sinc filter; Attenuation; Bandwidth; Delta-sigma modulation; Digital filters; Digital modulation; Finite impulse response filter; Hardware; Passband; Sampling methods; Silicon compiler;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226564
